Vehicle theft-preventing device



'Api'. 3, 1923. 1,450,411.

E. V. COY.

VEHICLE THEFT PREVENTING DEVICE.

FILED AUG.2, I922.

@l 20 I 22g/.

Patented Apr. 3,1923; l

. EAnnEs'r vg fcoy, or/Excn'tsroa srarnes, ivrIssoURr.

'VEHICLE 4trainer-rnnvnivmivei DEVICE.

Y, v ..fippiia''mijnl mea' `flitsers@2., 192e.: ,sensi npr.' 539,100.

l l. .h x.. -y Ky -i gir citizen of the' United States of America, Vre-.y

siding at Excelsior S,priiigs,fyi'n'v the county of Clay and `State ofMissouri, have invented certain new and` useful,"Improvementsfin VehicleTheft-Preventing Devices, of which the following is a specification.

My invention relates to devices for preventing` the theft of vehicles.

An object of my invention is to provide means connected with the engineof an -automobile which will give audible warning when the engine isoperated by any unau-` thorized person.

With this and other objects in view, one

embodiment of my invention is illustratedv in the accompanying'drawings,in which Figure 1 is af side elevation of my complete device lookingtoward the lock of the device, a part of the device being shown insection;

Figure 2 is a section on line 2 2 of Figure 1;

Figure 3 is a sectionon line 3-3 of'F-igure 2; l

Figure 4 is a side elevation of `a complete device with one partomitted, taken from the side opposite the side shown in Figure 1; andVFigure 5 is a section on line 3-3 of Fig. 2 with the device ininoperative position. Y

My device, which comprises a ybody member or nut having an openingthrough it with screw threads on both ends thereof, means to close theopening through this nut, a whistle attached to the .nut which may beplaced in operative and inoperative position7 and other features, may beconnected to the exhaust manifold 1 of an internal combustion engine. Anexhaust pipe, not shown, of conventional form may be attached to thesmaller end of the nut. The construction of the connection to themanifold prevents the removal of the device. A slot 2 is made midway thethreaded part of the nut in which is pivoted a dog 3, one end of whichis pushed upward by spring 4. This construction allows the device to bescrewed on to the end of the manifold, but prevents its removal, for ifan attempt is made to Iunscrew the nut, the end of the spring presseddog will dig into the threads on the manifold.

The opening throughthe nut is closed by a damper 6, attached to a shaft7 which is l by welding to the socket 11.

controlled;byaylock ,8; operated by ai' keyl the key,` opening i 9. `Thelock Vcon- ,struction which controlstheshaft maybejofvanv-.Qlered.foriny Leading frm the Opeliiign openinglQ-Awhichisplacedso that-when the damper is closed, the opening will connect the nut isan l with the opening to -the manifold. Attached to the nut is asocket-member 11 covering the opening 10, to which is fastened a whistlecylinder 12 having the usual whistle opening 13. A block 14 is fastenedin the bottom of whistle cylinder to close the-opening to the nutopening except at l5 which is the usual small opening of the sizerequired to blow the whistle. The whistle is placed in operativeposition as shown in Figure 3,and in inoperative position'as shown inFigure 5,

by a piston 16 which is connected to a rod 17 by having the upper endthereof attached tok a lug 18 which reciprocates in a slot in thewhistle cylinder. The lower end of this rod is connected to an arm 19which is fixed to the end ofy the vshaft 7 lwhich operates the damper. iv

The whistle part of my device may be covered by a dome 20 made offoraminousl materialattached by any suitable means as i The operationof-my device will be readilyv sis understood from the above descriptionand n may be briefly stated as follows While the engine is operated bythe owner of thecar, the damper and piston which are thel moving partsof the device,iwill be in the position indicated in Figure 5. When theengine is stopped, the user of the car by;l

means of a key will place the damper and pistonl in the position shownin Figure.v Any attempt to use the engine when the theft-preventingdevice is in the position shown in Figure?) will result in blowing thewhistle, giving noticel to the owner of the: 'Q y car. The device willAcontinue to vwhistle as long as the 'engine runs, for it cannot beplacedV out of operative position exceptk by operating the keycontrolled lock.

Having described my invention, what I claim and desire to protect byLetters Patent 1. A device of the kind described comprising a bodymember, said body member having an opening extending thro ugh saidmember, means to lock said member tothe ex-y haust manifold of aninternal combustion engine, a shaft controlled damper in saidy openingadapted to close said opening, a Whistle connected to said body member,the opening in Said Whistle extending into the body member openingbetween the damper and the opening into the exhaust manifold, a pistonin said Whistle, a connection between said piston and said shaftcontrolled damper and means to control Said damper and said Whistlepiston to place said device in operative and inoperative position, saidmeans comprising a lock.

2. A device ot' thekind described comprising a body member adapted tobek attached to the exhaust manifold of an internal combustion engine,said body member having an opening` extending through said member, meansto lock said device to said exhaust manifold comprising an annular slotadjacent one end of Said opening, a dog pivoted in 2U controlled means,and a cover Jfor said Whistle of foraminous material.

In testimony whereof I aliix my signature.

EARNEST V. COY.

